Answer: ANTIGEN

The crossword puzzle answer ANTIGEN has 4 different clues. We have seen it appear in puzzles 4 times.

Crossword puzzle clues for ANTIGEN:

• Antibody producer
• Immunologist's study
• Cause of an immune response
• Immune response stimulus

Usage in crossword puzzles

• Washington Post Daily Crossword Puzzle - 2001-08-26
• Washington Post Daily Crossword Puzzle - 2005-06-04
• Washington Post Daily Crossword Puzzle - 2005-09-20

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